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TLS Online TPP Program

#Question id: 3780

If a cell were unable to produce histone proteins, which of the following results would be a likely effect on the cell?

#XL - Q Biochemistry

  1. There would be an increase in the amount of DNA produced during replication.

  2. The cell's DNA could not be packed into its nucleus.

  3. Spindle fibers would not form during prophase.

  4. Amplification of other genes would compensate for the lack of histones.

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TLS Online TPP Program

#Question id: 1755

#XL - Q Biochemistry

Prior to class switching, B-cells express:
TLS Online TPP Program

#Question id: 1756

#XL - Q Biochemistry

Which of the following is the cytokine that is most involved in the class switch to IgE production?
TLS Online TPP Program

#Question id: 1757

#XL - Q Biochemistry

What is the first event following the production of CH germline transcripts by immunoglobulin genes?
TLS Online TPP Program

#Question id: 1758

#XL - Q Biochemistry

The specificity of antibody secreted by a B-cell may not be the same as that of the surface Ig of the clonal parent because of:
TLS Online TPP Program

#Question id: 1759

#XL - Q Biochemistry

What is the major long-term source of a foreign antigen in the body?
TLS Online TPP Program

#Question id: 1760

#XL - Q Biochemistry

Effector memory T-cells can be distinguished from the central memory T-cells from which they arise by: